Old preview stays when switching to a new one on server

[YogoGeeButch]

Is there an existing issue for this?

• I have searched the existing issues.

Are you using the latest Structurize Version?

• I am running the latest alpha version of Structurize for my Minecraft version.
  I am also running the latest versions of other mods that are part of my problem.

Did you check on the Wiki? or ask on Discord?

• I checked the MineColonies/Structurize Wiki or I asked on discord.

Minecraft Version

1.19

Structurize Version

1.0.484-ALPHA

MineColonies Version (if related bug)

1.0.1270-ALPHA

Related Mods and their Versions

domum_ornamentum-1.19.3-1.0.84-ALPHA
blockui-1.19.3-0.0.70-ALPHA
Forge 44.1.0

Current Behavior

Old preview will stay when cycling through previews. The new preview can be X'ed out, but the old one cannot, leaving a permanent preview unless I leave the server and come back in. This also causes minecraft to crash for the other players in the server. Issue is not re-creatable unless both players have the option to view each others preview placements.

Expected Behavior

Get rid of preview when switching through them, don't crash minecraft.

Reproduction Steps

join a server
allow others to see your preview, and allow seeing others previews for 2 people.
while looking at one building preview, swap to another one.
It will stay, attempt to X out the old one.
New one will disappear, old one will not, other player viewing your preview will crash so hard it closes out discord somehow.

Logs

https://gist.github.com/YogoGeeButch/fe4e61b38c711b0646170bdfac2b9cf2

Anything else?

No response

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[Nightenom]

hi, we need crash log if sth crashes

[Nightenom]

Fixed in 1.21 because of "blueprint instance <-> server" pinning